diff --git a/libexec/tftpd/tftpd.8 b/libexec/tftpd/tftpd.8
--- a/libexec/tftpd/tftpd.8
+++ b/libexec/tftpd/tftpd.8
@@ -36,7 +36,7 @@
 .Nd Internet Trivial File Transfer Protocol server
 .Sh SYNOPSIS
 .Nm tftpd
-.Op Fl cdClnow
+.Op Fl cdClnoSw
 .Op Fl F Ar strftime-format
 .Op Fl s Ar directory
 .Op Fl u Ar user
@@ -191,6 +191,8 @@
 After doing that but before accepting commands,
 .Nm
 will switch credentials to an unprivileged user.
+.It Fl S
+Skip requirements for world-writable permissions to write to file.
 .It Fl u Ar user
 Switch credentials to
 .Ar user
diff --git a/libexec/tftpd/tftpd.c b/libexec/tftpd/tftpd.c
--- a/libexec/tftpd/tftpd.c
+++ b/libexec/tftpd/tftpd.c
@@ -104,6 +104,7 @@
 static const char *newfile_format = "%Y%m%d";
 static int	increase_name = 0;
 static mode_t	mask = S_IWGRP | S_IWOTH;
+static int	secwrt = 0;
 
 struct formats;
 static void	tftp_recvfile(int peer, const char *mode);
@@ -141,7 +142,7 @@
 	acting_as_client = 0;
 
 	tftp_openlog("tftpd", LOG_PID | LOG_NDELAY, LOG_FTP);
-	while ((ch = getopt(argc, argv, "cCd::F:lnoOp:s:u:U:wW")) != -1) {
+	while ((ch = getopt(argc, argv, "cCd:F:lnoOp:s:Su:U:wW")) != -1) {
 		switch (ch) {
 		case 'c':
 			ipchroot = 1;
@@ -181,6 +182,9 @@
 		case 's':
 			chroot_dir = optarg;
 			break;
+		case 'S':
+			secwrt = 1;
+			break;
 		case 'u':
 			chuser = optarg;
 			break;
@@ -734,7 +738,7 @@
 					if ((stbuf.st_mode & S_IROTH) != 0)
 						break;
 				} else {
-					if ((stbuf.st_mode & S_IWOTH) != 0)
+					if (secwrt || (stbuf.st_mode & S_IWOTH) != 0)
 						break;
 				}
 				err = EACCESS;